Not all molecules can diffuse across biological membranes, because these membranes are often formed from lipids that are lipid and cannot develop hydrogen bonds with charged molecules.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles

maritime tropical may be your answer.

it would be rhyolitic hope this